Is there a limit on how many PDFs I can merge?

There's no fixed limit on the number of files. Because merging runs in your browser, very large combined documents are bounded only by your device's available memory.

Are my files uploaded to a server?

No. Merging happens entirely on your device, so your PDFs never leave your computer.

Will merging change the quality of my PDFs?

No. Pages are copied exactly as they are, so text, images, and formatting are preserved without recompression.

Merge PDF files

Merge two or more PDF files into a single document right in your browser. Reorder files before combining. Your files never leave your device.

Drop pdf files here, or click to browseMax 100 MB per file

How to merge pdf

Select or drop the PDF files you want to merge.
Drag to reorder them as needed.
Click Merge and download your combined PDF.

Frequently asked questions

Is there a limit on how many PDFs I can merge?: There's no fixed limit on the number of files. Because merging runs in your browser, very large combined documents are bounded only by your device's available memory.
Are my files uploaded to a server?: No. Merging happens entirely on your device, so your PDFs never leave your computer.
Will merging change the quality of my PDFs?: No. Pages are copied exactly as they are, so text, images, and formatting are preserved without recompression.